High-Purity Citric Acid for Metal Passivation from Japan
Ultra-pure citric acid (99.9%) for metal surface passivation in aerospace and medical device manufacturing under HTS 2918.14.00.00. Acts as eco-friendly replacement for nitric acid in stainless steel treatment. Chemically defined compound with no disqualifying modifications.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• ASTM A967 compliance cert required for passivation end-use; iron content <5ppm
• NSF/ANSI 61 certification for water contact applications
• Small batch imports—ensure lot traceability for quality systems like ISO 13485